Aplex Technology ARCHMI-912 - Manual (Page 43)

ARCHMI-9XX Series User Manual 42
Note:
Before connection, make sure that pinout of the USB Cable is in accordance
with that of the said tables. Any inconformity may cause system down and
even hardware damages.
JP5:
(2.0mm Pitch 2x3 Pin Header), COM3 setting jumper, pin 1~6 are used to select
signal out of pin 9 of COM3 port.
JP5 Pin# Function
Close 1-2 RI (Ring Indicator) (default)
Close 3-4 COM3 Pin9=+5V (option)
Close 5-6 COM3 Pin9=+12V (option)
COM3:
(Type DB9), serial port, standard DB9 serial port is provided to make a direct
connection to serial devices. COM3 port is controlled by pins No. 1~6 of JP5,
select output Signal RI or 5V or 12V, for details, please refer to description of
JP5.
Pin# Signal Name
1 DCD# (Data Carrier Detect)
2 RXD (Received Data)
3 TXD (Transmit Data)
4 DTR (Data Terminal Ready)
5 Ground
6 DSR (Data Set Ready)
7 RTS (Request To Send)
8 CTS (Clear To Send)
9 JP5 Setting:
Pin1-2: RI (Ring Indicator) (default)
Pin3-4: 5V Standby power (option)
Pin5-6: 12V Standby power (option)